Parametric Optimization and Performance Analysis of Adhesive Bonding of Automotive Steel

Abstract

In the present study, adhesive bonding of automotive grade steel has been studied using an epoxy resin-based Araldite adhesive. Adhesive bonding of steel is largely affected by surface roughness, overlap length, bond line thickness, curing time, and curing temperature. However, all the joint samples have been cured at room temperature for 72 h. The design of experiments (DOE) method is being used in this study to create a reliable adhesive bonding process. Conforming to the experimental design, the surface roughness, bond line thickness, and overlap length are altered to examine their effects on lap sear strength. In addition, an attempt has been made to model these three response variables using the response surface technique (RSM). Analysis of variance (ANOVA) is utilized to analyze the impact of joining parameters. The test findings support and validate the established RSM model. Adherend surface has been characterized by measuring contact angle and surface roughness to study the wettability effect on bond strength. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.